Can you get married more than once? That would be creepy if you could.

yea bcuz one time i was like married to like 4 people with my guy sims *screams PLAYA* i havent been able to again tho 4 some reason but yea you can divorce as someone already said just kick em out [if they live there they wont move out trust me i have tried]

Yes,you can divorce the lovers.The tip:make bad socials with your sim lover and when your sims relationship are under 0(likes -100),your sim lover are now your sim ennemy.Don't try it always,because some sims have fear goal as make ennemy and do this decrease aspiration points.

yea but instead of losing a friend just marry another Sim.Then you can have them as a friend.Just make sure the person is at their job or else you'll make them sad and depressed.Oh also they might stay as a lover on your friend chart....